Boilers, Coal, Gas

Credit crunched CCGT project gets go-ahead

27 May 2009 – Siemens Energy has secured an order for a much delayed turnkey construction of a combined-cycle gas turbine (CCGT) power project in the Rotterdam Europoort in the Netherlands.

The purchaser is Enecogen, a partnership of the Dutch utility Eneco and the Danish utility DONG Energy. The project with an installed capacity of approximately 870 MW is scheduled to go on line in late 2011. The order volume, including a long-term maintenance agreement, is just under EUR700m ($977m).

Pieter Tavenier of Eneco Holdings, said: “There were three hiccups with this project. Firstly was the lack of transport capacity on the grid. It took 12-18 months to clear the delay. Secondly, the tender was put out in 2007 in a very congested EPC market.

“The last hurdle was the financial crisis, which led to an unavailability of funding. This delayed the project by a further six months. The plan was to complete the pre-build phase in two years, but it actually took four years.”

“This project underlines that even in these difficult economic times customers can commit to build such power plants in an open partnership arrangement with a reliable EPC contractor allowing to achieve best schedule and price”, said Michael Suess, CEO of the Fossil Power Generation of Siemens Energy. “I’m very happy that Enecogen’s specific requirements fit perfectly with our reliable, sound and most environmentally friendly power plant concept.”

The project consists of two trains of the SCC5-4000F 1 S combined cycle power plant, which through its modular concept allows easy adaptation to specific customer needs and site requirements, high operational flexibility, short start up times and high ramp rates.

Siemens Energy will build the power plant as a turnkey project and supply the main components comprising for each train one SGT5-4000F gas turbine, one SST5-5000 steam turbine and one hydrogen-cooled generator, the entire mechanical equipment, and the electrical and I&C systems.

All three main components are arranged on a single shaft. A synchronous self-shifting (SSS) clutch is installed between the generator and steam turbine. This provides high operating flexibility and reliability.

“With low NOx emissions of less than 10 ppm and a plant efficiency of more than 59 percent the two gas-fired plants will be the most environmentally friendly recently built commercially in Europe,” said Lothar Balling, CEO of Energy Solution Business Europe of Siemens Fossil Division.

The new CCGT plant will also be carbon capture ready. Rotterdam Europoort is developing a carbon grid, utilizing disused gasfields in the North Sea, as well as greenhouses in the northern Rotterdam area. Various gasfields have been found to be suitable for CO2 storage for the Eneco plant.